Downtown (Boise) Weather Forecast
- 49
- 75
Sunny
- 54
- 84
Chance Rain Showers
- 47
- 77
Rain Showers Likely
- 47
- 66
Chance Rain Showers
- 50
- 75
Slight Chance Thunderstorms
- 53
- 76
Mostly Sunny
Today 1 May Upper Treasure Valley
Sunny. Highs 71 to 76. Light Winds.
Tonight 1 May Upper Treasure Valley
Mostly clear. Lows 42 to 49. Light Winds.
Downtown (Boise) Temperature Statistics
May Temperature
Boise Air Terminal (3.7 miles)
Lowest
–Average May
–Highest
–
Climate (2020–Present)
Boise Air Terminal (3.7 miles)
Average Low 2020–2025
43.6 °FAverage 2020–2025
54.3 °FAverage High 2020–2025
65.5 °F